蚕豆象身体呈扁长形,赤褐色,全体没有茸毛;前胸背板两侧缘齿突齿尖向两侧平行伸展;前足腿节大部分及胫节、跗节为黑褐色;两鞘翅末端近1/3处的白毛斑呈较宽的“八”字形。
参考答案:错
Written in a hurry, _______. How can it be satisfactory?[ ]
A. they found many mistakes in the report
B. Sam made lots of mistakes in the report
C. there are plenty of mistakes in the report
D. the report is full of mistakes
电压表的内阻应该是(),电流表的内阻应该是()。
A、越小越好
B、越大越好
C、适中